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To give the exporter sufficient time to prepare the order so that he can manufacture the product with care and attention.
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All of the manufactures/exporters in Sri Lanka buy the coir fibre from fibre millers.
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All of the manufactures/exporters buy the nylon rope from the market, the fishing industry. Mostly imported nylon rope. Therefore it is fairly difficult to purchase nylon ropes having the same colour as well as the same dia in large quantities within a short period of time.
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In the case of the coir net production, we generally make the coir twine at our factory from fibres we buy from outside.
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All the manufactures/exporters get the twines/rope make into nets from outside. This needs time, because the net markers are not getting continuous orders from the manufactures/exporters through out the year. Therefore they depend on contract labour to organize the net weaving. It is also a manual process.
- The manufactures/exporters use stuffing machinery to stuff the fibres that generally come in compact pressed form for better internal transport. The stuffed rolls have to be worked out at the two ends and generally quality controlled by weighing the roll to define the density of the rolls and also the ends of the roll is double checked. Unless the density is appropriate for a geo roll the quality of homogeneous character cannot be guaranteed.
- We shall in future inform you if the density is generally low in the rolls, as in the case of your nylon net rolls. These rolls had areas where the density within a specified distance was lower than other areas. The log weight was not quite uniform along the linear length thus creating ‘weak spots’. See the picture with a gentleman standing on top of the log at a weak area in the log.
- We shall monitor the moisture content of the geo rolls due to the following reasons.
When geo rolls having higher moisture content is stuffed into containers, they may be subjected to high temperature on ship decks from the blazing sun. The coir rolls give up or evaporate moisture almost to 0% moisture content under such circumstances. The condensed water is carried down on the walls of the container and ‘floods’ the floor of the container. It could happen that the geo rolls at the bottom is than saturated with water giving a very soggy impression. This loss of weight in the geo rolls due to evaporation is indicated in a weight loss and gained by some other logs. Therefore we shall in future be careful not to use fibre that has a negative value of moisture content. Sometime you can observe the wetness at the bottom of a roll also.
It seems making coir geo logs does not need much thinking or intelligence in the manufacture. However when you analyze the whole process of making it from the begin stage to the final end product usage at your end, it needs lots of understanding. It seems you had problems in planting on the logs due to variance in the densities. It is for this reason that sometimes I request to know what you do, how you do and for what purpose you do with the coir logs. Besides it broadens my knowledge. Therefore, kindly trust us and share your knowledge with us to improve and be aware of your problems at our end as much as our problems at your end.
Thank you and best regards,
Seela |
